Dolphin has VBulletin and phpBB2 integration built in. I have never tried the Vbulletin, and like most things with Dolphin there aren't really any instructions. The files needed are in the "/forum" directory, that is about all I know about the Vbulletin integration. I have done several phpBB2 setups and it takes a lot of work to get it to do what it is supposed to do :-(